Is Buena Park, CA tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
City of Buena Park, the largest system here, had PFAS above the 2024 federal limits (PFOS) in EPA's 2023–2025 testing.
Is it an emergency? No: PFAS limits are about years of exposure, not a glass of water, and nothing in EPA's data calls for you to stop drinking the water today. If your utility issues a boil-water or do-not-drink notice, follow it.
2 public water systems serve parts of Buena Park. The largest, City of Buena Park, serves 82,667 people, and 2 systems here had PFAS above a federal limit. Your water bill names your system.
Largest system
City of Buena Park
82,667 people · Purchased surface water · EPA ID CA3010003
Buys treated water from Golden State Water Company – West Orange County, Metropolitan Water District of SO. Cal..
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Above limit | 6.1 ppt | 4 ppt |
| PFHxS Detected, below limit | 3.7 ppt | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
For context: the PFOS average is higher than at 86% of the California systems EPA tested.
Lead: 0 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across California, 129 of 691 water systems EPA tested had PFAS above a 2024 federal limit, and 26 systems were above the lead action level in results from the last five years. California results.
Buena Park homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Buena Park city (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Buena Park
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| La Mirada 3 mi Suburban Water Systems-Whittier | Above limit | 0 ppb |
| Cypress 3 mi Golden State Water Company – West Orange County | Above limit | 2.2 ppb |
| Cerritos 4 mi Golden State Water Company – Artesia | Above limit | 0 ppb |
| Stanton 4 mi Golden State Water Company – West Orange County | Above limit | 2.2 ppb |
| Fullerton 5 mi City of Fullerton | Above limit | 1.5 ppb |
| Norwalk 6 mi Liberty Utilities – Bellflower-Norwalk | Above limit | 0 ppb |
Buena Park ZIP codes (2)
- 90620
- 90621
Questions
Is Buena Park tap water safe to drink?
City of Buena Park has had no health-based violations since 2016, and EPA testing found PFAS above the 2024 federal limits, which it must meet by 2029. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Buena Park, CA?
2 public water systems serve parts of Buena Park. The largest is City of Buena Park (82,667 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Buena Park tap water have PFAS?
Yes. EPA's 2023–2025 testing found entry-point averages above the 2024 federal limits for PFOS at City of Buena Park. Systems have until 2029 to meet them.
Do Buena Park homes have lead pipes?
Census estimates put 76% of Buena Park homes as built before 1980 (California: 56%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Buena Park's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.